<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>

<body>

<div id="app">

    <todo>
        <todo-title slot="todo-title" :title="title"></todo-title>
        <todo-items slot="todo-items" v-for="item in todoItems" :item="item"></todo-items>
    </todo>

</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/axios@0.18.0/dist/axios.min.js"></script>
<script>
    Vue.component('todo', {
        template:
            '<div>' +
            '<slot name="todo-title"></slot>' +
            '<ul>' +
            '<slot name="todo-items"></slot>' +
            '</ul>' +
            '</div>'
    })

    Vue.component('todo-title', {
        props: ['title'],
        template: '<div>{{title}}</div>'
    })

    Vue.component('todo-items', {
        props: ['item'],
        template: '<li>{{item}}</li>'
    })

    var vm = new Vue({
        el: "#app",
        data: {
            title: "todo list",
            todoItems: ['Foo', 'Bar', 'Baz']
        }
    })
</script>

</body>

</html>